Numbers 36:1-3

1The heads of the ancestral family of the children of Gilead son of Machir son of Manasseh, from the sons of Joseph, came and spoke before Moses and before the princes of the chiefs of the fathers of Bnei-Yisrael.

2They said, “My lord, Adonai commanded to give the land by lot as an inheritance to Bnei-Yisrael. My lord was also commanded by Adonai to give the inheritance of our brother Zelophehad to his daughters.

3“If they become wives of men from other tribes of Israel, their inheritance will be taken from our ancestral inheritance and added to the inheritance of the tribe into which they marry. So it will be deducted from the allotment of our inheritance.